Systems and methods for Wi-Fi sensing are provided. A networking device is configured to transmit a sensing trigger message including information about a plurality of fast sounding sensing signals to be transmitted. The networking device receives the plurality of fast sounding sensing signals transmitted by a sensing transmitter in response to the sensing trigger message within a transmission opportunity. The networking device performs a plurality of sensing measurements on the plurality of fast sounding sensing signals wherein the plurality of sensing measurements include measurements of Doppler frequency information associated with motion in a sensing space.
Legal claims defining the scope of protection, as filed with the USPTO.
3. The method of claim 2, wherein at least one of the plurality of sensing signals is transmitted in response to a sensing sounding trigger frame of the plurality of sensing sounding trigger frames.
4. The method of claim 2, further comprising associating a time stamp with one or more sensing measurements performed on one or more of the plurality of sensing signals.
5. The method of claim 1, further comprising associating a plurality of time stamps with respective ones of the plurality of sensing measurements performed on the one or more high efficiency long training fields.
9. The method of claim 1, further comprising determining the predefined number of high efficiency long training fields to be included within the plurality of sensing transmissions to sense an object moving at at least a threshold speed within a channel of the plurality of sensing transmissions without aliasing.
10. The method of claim 9, wherein the threshold speed is 3.0 m/s.
11. The method of claim 1, further comprising receiving the predefined number of high efficiency long training fields at an average rate of at least 250 kHz.
12. The method of claim 1, further comprising detecting the Doppler frequency of motion in the sensing space according to the plurality of sensing measurements.
13. The method of claim 1, wherein the predefined number of high efficiency long training fields is at least two.
16. The system of claim 15, wherein at least one of the plurality of sensing signals is transmitted in response to a sensing sounding trigger frame of the plurality of sensing sounding trigger frames.
17. The system of claim 15, wherein the at least one processor is further configured for associating a time stamp with one or more sensing measurements performed on one or more of the plurality of sensing signals.
18. The system of claim 14, wherein the at least one processor is further configured for associating a plurality of time stamps with respective ones of the plurality of sensing measurements performed on the one or more high efficiency long training fields.
22. The system of claim 14, wherein the at least one processor is further configured for determining the predefined number of high efficiency long training fields to be included within the plurality of sensing transmissions to sense an object moving at at least a threshold speed within a channel of the plurality of sensing transmissions without aliasing.
23. The system of claim 22, wherein the threshold speed is 3.0 m/s.
24. The system of claim 14, wherein the at least one processor is further configured for receiving the predefined number of high efficiency long training fields at an average rate of at least 250 kHz.
25. The system of claim 14, wherein the at least one processor is further configured for detecting the Doppler frequency of motion in the sensing space according to the plurality of sensing measurements.
26. The system of claim 14, wherein the predefined number of high efficiency long training fields is at least two.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
March 17, 2023
July 16, 2024
Browse 5M+ US patents with plain-English claim translations and AI-generated analysis.